webui: move most of openui5-related code in Canvas.controller
webui: move most of openui5-related code in Canvas.controller

There is special mode, when openui5 used only optionally.

olifre/root,root-mirror/root,root-mirror/root,root-mirror/root,karies/root,olifre/root,olifre/root,karies/root,olifre/root,karies/root,karies/root,olifre/root,karies/root,root-mirror/root,karies/root,olifre/root,olifre/root,karies/root,root-mirror/root,root-mirror/root,olifre/root,root-mirror/root,karies/root,root-mirror/root,root-mirror/root,olifre/root,olifre/root,root-mirror/root,karies/root,olifre/root,karies/root,karies/root,root-mirror/root